Lubricator



Patented Oct. 20, i925.

UNITED STATES PATENT OFFICE.

ELIJAH MCCOY, OF DETROIT, MICHIGAN, ASSIGNOR TO EDWIN C. NAGEL, OF DETROIT,

MICHIGAN.

LUBRICATOR.

Application led December 18, 1922.

To all 107mm, 2f?? may concern Be it known that I, ELrJAi-r MoCoY, a citizen of the United States of America, residing at Detroit, in the county of 1Wayne and State of Michigan, have invented certain new and useful Improvements in Lubricaters, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to lubricators of that type designed for the feeding of graphite or other liaked or powdered lubricant into the lubricating fluid, and the invention consists in certain novel features of construction as hereinafter set forth.

In the drawings:

Figure l is a sectional elevation of the lubricator;

Figure 2 is a horizontal section on line 2 2 of Figure l;

Figure 3 is a view similar to Fig. l showing a modification.

As shown, A is the casingor container for the lubricant which is provided at its lower end with the threaded nipple B for attachment to the fitting C leading to the part to be lubricated. The device is particularly designed for use on locomotives where the pulsating pressure of steam is utilized for agitating and feeding the llalred or powdered lubricant. Thus, as shown, D is the conduit through which the fluid lubricant is fed to the fitting C and through the latter into the engine steam chest E. The pulsating pressure of steam in the chest E will thus pass backward through the fitting C and nipple B into the container A and upon falling of the pressure, the reverse current will carry with it the llaked or powdered lubricant.

To insure the constant feeding of this flaked or powdered lubricant, I have devised the following construction: F is a hollow stem having its lower end engaging a threaded recess in the nipple B and its upper end preferably extending to the top of the casing A and into the hollow cap Gr for closing said casing. The stem F has formed in its lower portion a valve seat H which, when engaged by a valve I, will cut off communication from the cup to the fitting C. WThen, however, the back pressure is suficient, the valve I will be lifted from its seat to permit the passage of steam into the Serial No. 607,655.

casing A. The passage of this steam is through an annular series of ports .l formed in thehollow member F; These are so arranged that when the valve I is lifted from its seat, the steam will be deflected in all directions through the ports J and into the flaked or powdered lubricant, agitating the same and permitting a small quantity to be fed in; the reverse direction when the current of steam is reversed. As shown in Figure l, the valve I is in the form of a ball valve and stem F is provided with an upper seat K above the ports J cutting off communication with the chamber L in the upper portion of the stem. Forts M at the upper end of the stem establish communication between the chamber L in the casing A and serve to equalize the pressure above and below the valve H. However, in operation, the valve I7 when lifted from its lower to its upper seat, will cause the momentary inliection of steam through the ports K into the mass of flaked or powdered lubricant and when thepressures have equalized, a small portion of the lubricant will be carried downward and will pass into the fitting C before the valve I again engages its lower seat.

l/Vith the construction shown in Figure 3, in place of the ball valve I, a. cylindrical valve I is used and an adjustable stop O formed by a threaded stem serves to limit the amount of movement of the valve.

One of the advantages of the construction, as shown in Figure l, is that the hollow ste-m F is accessible from the top of the cun and in case of any clogging can be readily removed and replaced. A slot P at the upper end of the stem serves for its engagement with a screw driver by which the stem may be easily unscrewed.

What I claim as my invention is:

l. In a lubricator for the feeding of llaled or powdered lubricant, the combination with a easing, of a hollow stem extending longitudinally thereof and provided with ports at its upper end communicating with the casing, said stem also having a series of three or more inclined ports between the hollow interior thereof and the lower portion of the casing, said ports being arranged to lead upwardly in all directions to deflect the steam in all directions and agitate the flaked or powdered lubricant in said chamber, and e normally closed automatic valve in said hollow stem adapted to be actuated by the pulsating pressure.

2.111 a lubricator for the feeding of fiaked or powdered lubricant, the combination with a casing, of a hollow stem extend! ing' upwardly in said casing and provided with ports communicating' with the upper und lower portions of said casing, a normall)7 closed falve in snid hollow stem, and seats for seid valve above :ind below the ports communicating, with the lower end of saidcasing for the purpose described.

3. In n lubricator for thel feeding,y of

linked or powdered lubricant, the combina.- tion with. a, oasingand arcap therefor, .of a hollow stem extending upwardly within said easing with its upper end accessible when seid cap is removed, an annular Series of ports leadingfrom `sai-dhollow 'stemto the lower-portion of said casing, a Second series of ports comn'lunioating with the top of said casing, u grznf'ity closed ball Valve within said-,hollow stem, and-seats for said Valve above and below said `annular series of ports.

In testimony whereof I valix my signature.4

ELIJAH MCCOY. 

